Document360 experienced a minor incident on July 13, 2026, lasting 35m. The incident has been resolved; the full update timeline is below.
Update timeline
- identified Jul 13, 2026, 06:22 AM UTC
We identified an issue affecting the Custom CSS processing, which caused custom styles to not be applied correctly in KB site. Our team investigated the root cause and prepared a fix.
- resolved Jul 13, 2026, 06:57 AM UTC
Analysis: We identified an issue affecting Custom CSS that caused custom styles to not be applied correctly in KB site. The issue was traced to a recent update in our Safe HTML guardrails, which incorrectly treated valid custom CSS as unsafe and prevented those styles from being applied. Resolved: We have updated the Safe HTML validation logic to correctly allow valid custom CSS while maintaining the intended security protections. The fix has been completed and is being rolled out to production. We will continue to monitor the deployment to ensure the issue is fully resolved and no further impact is observed.